It would seem moving or resizing a canvas object clears its contents.
Also, a canvas without any effects fails to grab the layout, either before or after.
Is this by design or a bug? if by design, are there any workarounds?
I'm trying to get a feedback effect and the only way is to move the canvas.
I tried offset effects, but the distance is a fixed number, thus the effect is frame based. Could work though. For zooming I couldn't get the Magnify or Lens effects to work with canvas. Pattern does work beautifully. Sadly, no effect on canvas can achieve what I'm going for since they accumulate over frames and I want to render the efect accumulated looping and ping-ponging over two canvas, pasting between each other several times.
Also, canvas seems to ignore alpha.